The Architectural Logic of Database Systems

The Architectural Logic of Database Systems

If we look back to pre-database systems and the data units which were in use, we will establish a hierarchy starting with the concept of 'field' used to build 'records' which were in turn used to build higher data units such as 'files'.

Author: Emmanuel J. Yannakoudakis

Publisher: Springer

ISBN: 3540195130

Category: Computers

Page: 318

View: 770

If we look back to pre-database systems and the data units which were in use, we will establish a hierarchy starting with the concept of 'field' used to build 'records' which were in turn used to build higher data units such as 'files'. The file was considered to be the ultimate data unit of information processing and data binding 'monolith'. Moreover, pre database systems were designed with one or more programming languages in mind and this in effect restricted independent develop ment and modelling of the applications and associated storage structures. Database systems came along not to turn the above three units into outmoded concepts, but rather to extend them further by establishing a higher logical unit for data description and thereby offer high level data manipulation functions. It also becomes possible for computer professionals and other users to view all information processing needs of an organisation through an integrated, disciplined and methodical approach. So, database systems employ the concepts field, record and file without necessarily making them transparent to the user who is in effect offered a high level language to define data units and relation ships, and another language to manipulate these. A major objective of database systems is to allow logical manipulations to be carried out independent of storage manipulations and vice versa.
Categories: Computers

The Architectural Logic of Database Systems

The Architectural Logic of Database Systems

(b) Logical independence implying that logical records and structures, as viewed by the users, are manipulated without disturbing existing storage structures or physical characteristics in general. For the DBMS to perform effectively it ...

Author: Emmanuel J. Yannakoudakis

Publisher: Springer Science & Business Media

ISBN: 9781447116165

Category: Computers

Page: 318

View: 964

If we look back to pre-database systems and the data units which were in use, we will establish a hierarchy starting with the concept of 'field' used to build 'records' which were in turn used to build higher data units such as 'files'. The file was considered to be the ultimate data unit of information processing and data binding 'monolith'. Moreover, pre database systems were designed with one or more programming languages in mind and this in effect restricted independent develop ment and modelling of the applications and associated storage structures. Database systems came along not to turn the above three units into outmoded concepts, but rather to extend them further by establishing a higher logical unit for data description and thereby offer high level data manipulation functions. It also becomes possible for computer professionals and other users to view all information processing needs of an organisation through an integrated, disciplined and methodical approach. So, database systems employ the concepts field, record and file without necessarily making them transparent to the user who is in effect offered a high level language to define data units and relation ships, and another language to manipulate these. A major objective of database systems is to allow logical manipulations to be carried out independent of storage manipulations and vice versa.
Categories: Computers

Advanced Relational Programming

Advanced Relational Programming

Deductive database systems combine the functionalities of logic programming and database systems. From the architectural point of view, a deductive database system may be implemented in several different ways.

Author: F. Cacace

Publisher: Springer Science & Business Media

ISBN: 9789400708587

Category: Computers

Page: 394

View: 505

This volume aims to present recent advances in database technology from the viewpoint of the novel database paradigms proposed in the last decade. It focuses on the theory of the extended relational model and an example of an extended relational database programming language, Algres, is described. A free copy of Algres complements this work, and is available on the Internet. Audience: This work will be of interest to graduate students following advanced database courses, advanced data-oriented applications developers, and researchers in the field of database programming languages and software engineering who need a flexible prototyping platform for the development of software tools.
Categories: Computers

Data Mining

Data Mining

Further details on DBMSs based on logic as a data model are given in Chapter 8. For a discussion of logic programming we refer to ... 2.3 ARCHITECTURAL ISSUES This section describes various types of architectures for a database system.

Author: Bhavani Thuraisingham

Publisher: CRC Press

ISBN: 9781482252507

Category: Computers

Page: 288

View: 641

Focusing on a data-centric perspective, this book provides a complete overview of data mining: its uses, methods, current technologies, commercial products, and future challenges. Three parts divide Data Mining: Part I describes technologies for data mining - database systems, warehousing, machine learning, visualization, decision support, statistics, parallel processing, and architectural support for data mining Part II presents tools and techniques - getting the data ready, carrying out the mining, pruning the results, evaluating outcomes, defining specific approaches, examining a specific technique based on logic programming, and citing literature and vendors for up-to-date information Part III examines emerging trends - mining distributed and heterogeneous data sources; multimedia data, such as text, images, video; mining data on the World Wide Web; metadata aspects of mining; and privacy issues. This self-contained book also contains two appendices providing exceptional information on technologies, such as data management, and artificial intelligence. Is there a need for mining? Do you have the right tools? Do you have the people to do the work? Do you have sufficient funds allocated to the project? All these answers must be answered before embarking on a project. Data Mining provides singular guidance on appropriate applications for specific techniques as well as thoroughly assesses valuable product information.
Categories: Computers

Data Management Systems

Data Management Systems

Logic for Representation 2.3 ARCHITECTURAL ISSUES This section describes various types of architectures for a database system . First we illustrate a very high - level centralized architecture for a database system .

Author: Bhavani Thuraisingham

Publisher: CRC Press

ISBN: 0849394937

Category: Computers

Page: 276

View: 452

As the information contained in databases has become a critical resource in organizations, efficient access to that information and the ability to share it among different users and across different systems has become an urgent need. The interoperability of heterogeneous database systems-literally, the ability to access information between or among differing types of databases, is the topic of this timely book. In the last two decades, tremendous improvements in tools and technologies have resulted in new products that provide distributed data processing capabilities. This book describes these tools and emerging technologies, explaining the essential concepts behind the topics but focusing on practical applications. Selected products are discussed to illustrate the characteristics of the different technologies. This is an ideal source for anyone who needs a broad perspective on heterogeneous database integration and related technologies.
Categories: Computers

Standard Relational and Network Database Languages

Standard Relational and Network Database Languages

International Organisation for Standardisation (ISO), 'Information Processing Systems - Database Language NDL', ISO 8907, 1987b. Yannakoudakis, E.J., “The Architectural Logic of Database Systems ...

Author: E.J. Yannakoudakis

Publisher: Springer Science & Business Media

ISBN: 9781447132875

Category: Computers

Page: 148

View: 328

For any type of software to become standard, whether a third genera tion language or an integrated project support environment (IPSE), it must undergo a series of modifications and updates which are a direct result of theoretical and empirical knowledge gained in the process. The database approach to the design of general purpose infonn ation systems has undergone a series of revisions during the last twenty years which have established it as a winner in many different spheres of infonnation processing, including expert systems and real time control. It is now widely recognised by academics and practitioners alike, that the use of a database management system (DBMS) as the under lying software tool for the development of infonnation/knowledge based systems can lead to environments which are: (a) flexible, (b) efficient, (c) user-friendly, (d) free from duplication, and (e) fully controllable. The concept of a DBMS is now mature and has produced the software necessary to design the actual database holding the data. The database languages proposed recently by the International Organisa tion for Standardisation (ISO) are thorough enough for the design of the necessary software compilers (i.e programs which translate the high level commands into machine language for fast execution by the computer hardware). The ISO languages adopt two basic models of data and therefore two different sets of commands: (a) the relational, implemented via the relational database language (RDL), and (b) the network, imple mented via the network database language (NDL).
Categories: Computers

Databases and Information Systems V

Databases and Information Systems V

Automated implementation and change of rule structures in database logical model. Automated decision execution process implementation in business logic tier of n-Tier architecture for use in different SS systems of information system.

Author: Hele-Mai Haav

Publisher: IOS Press

ISBN: 9781586039394

Category: Computers

Page: 325

View: 200

The Eighth International Baltic Conference on Databases and Information Systems took place on June 25 2008 in Tallinn, Estonia. This conference is continuing a series of successful bi-annual Baltic conferences on databases and information systems (IS). The aim is to provide a wide international forum for academics and practitioners in the field of databases and modern information systems for exchanging their achievements in this area. The original research results presented in Databases and Information Systems V mostly belong to novel fields of IS and database research such as database technology and the semantic web, ontology-based IS, IS and AI technologies and IS integration. The contribution of Dr. Jari Palomauml;ki showed how different ontological commitments affect the way we are modeling the world when creating an information system. As semantic technologies have been gaining more attention recently, a special session on semantic interoperability of IS was organized. The invited talks from each Baltic State gave a good insight how semantic interoperability initiatives are developing in each of the Baltic States and how they relate to the European semantic interoperability framework.
Categories: Computers

Hands On Big Data Modeling

Hands On Big Data Modeling

Effective database design techniques for data architects and business intelligence professionals James Lee, Tao Wei, ... Database Design: An Entity-Relationship Approach, by Carlo Batini The Architectural Logic of Database Systems, ...

Author: James Lee

Publisher: Packt Publishing Ltd

ISBN: 9781788626088

Category: Computers

Page: 306

View: 399

Solve all big data problems by learning how to create efficient data models Key FeaturesCreate effective models that get the most out of big dataApply your knowledge to datasets from Twitter and weather data to learn big dataTackle different data modeling challenges with expert techniques presented in this bookBook Description Modeling and managing data is a central focus of all big data projects. In fact, a database is considered to be effective only if you have a logical and sophisticated data model. This book will help you develop practical skills in modeling your own big data projects and improve the performance of analytical queries for your specific business requirements. To start with, you’ll get a quick introduction to big data and understand the different data modeling and data management platforms for big data. Then you’ll work with structured and semi-structured data with the help of real-life examples. Once you’ve got to grips with the basics, you’ll use the SQL Developer Data Modeler to create your own data models containing different file types such as CSV, XML, and JSON. You’ll also learn to create graph data models and explore data modeling with streaming data using real-world datasets. By the end of this book, you’ll be able to design and develop efficient data models for varying data sizes easily and efficiently. What you will learnGet insights into big data and discover various data modelsExplore conceptual, logical, and big data modelsUnderstand how to model data containing different file typesRun through data modeling with examples of Twitter, Bitcoin, IMDB and weather data modelingCreate data models such as Graph Data and Vector SpaceModel structured and unstructured data using Python and RWho this book is for This book is great for programmers, geologists, biologists, and every professional who deals with spatial data. If you want to learn how to handle GIS, GPS, and remote sensing data, then this book is for you. Basic knowledge of R and QGIS would be helpful.
Categories: Computers

Argumentation in Multi Agent Systems

Argumentation in Multi Agent Systems

Section 2 sums up related work, Section 3 contains our proposal for the system architecture, and section4 formally ... in the declarative nature of logic programming languages and the data-handling capabilities of database systems.

Author: Peter McBurney

Publisher: Springer

ISBN: 9783642219405

Category: Computers

Page: 327

View: 624

This book constitutes the thoroughly reviewed post-proceedings of the 7th International Workshop on Argumentation in Multi-Agent Systems, ArgMas 2010, held in Toronto, Canada in May 2010 as a satellite workshop of AAMAS 2010. The 14 revised full papers taken from ArgMAS 2010 were carefully reviewed and improved during two rounds of revision. Also included are 4 invited papers based on presentations on argumentation at the AAMAS 2010 main conference. All together the 18 papers included in the book give a representative overview on current research on argumentation in multi-agent systems. The papers are organized in topical sections on practical reasoning and argument about action, applications, and theoretical aspects.
Categories: Computers

Database Systems for Advanced Applications

Database Systems for Advanced Applications

The data tier component can be reused, thereby reducing the development cost. Web applications that provide APIs have a different architecture, as shown in Fig. 1(b). While the whole server-side works as a data tier, business logic is ...

Author: Hiroyuki Kitagawa

Publisher: Springer Science & Business Media

ISBN: 9783642120978

Category: Computers

Page: 515

View: 535

This two volume set LNCS 5981 and LNCS 5982 constitutes the refereed proceedings of the 15th International Conference on Database Systems for Advanced Applications, DASFAA 2010, held in Tsukuba, Japan, in April 2010. The 39 revised full papers and 16 revised short papers presented together with 3 invited keynote papers, 22 demonstration papers, 6 industrial papers, and 2 keynote talks were carefully reviewed and selected from 285 submissions. The papers of the first volume are organized in topical sections on P2P-based technologies, data mining technologies, XML search and matching, graphs, spatial databases, XML technologies, time series and streams, advanced data mining, query processing, Web, sensor networks and communications, information management, as well as communities and Web graphs. The second volume contains contributions related to trajectories and moving objects, skyline queries, privacy and security, data streams, similarity search and event processing, storage and advanced topics, industrial, demo papers, and tutorials and panels.
Categories: Computers